12 top Republicans who back gay marriage — and the only one who matters

FILE - In this Oct. 6, 2011, file photo, former Vice President Dick Cheney speaks at the third annual Washington Ideas Forum at the Newseum in Washington. Cheney has been released from a Northern Virginia hospital after having a heart transplant. The former vice presidents office said in a statement that the 71-year-old Cheney was released Tuesday, April 3, 2012, from Inova Fairfax Hospital Heart and Vascular Institute 10 days after receiving a new heart from an unknown donor. (AP Photo/Manuel Balce Ceneta, File)

12 notable Republicans who back gay marriage — and the only one who matters

Few issues have historically divided Democrats and Republicans as much as gay marriage. The overwhelming number of supporters are Democrats, while most Republicans oppose it.Still, a few members of the Grand Old Party have bucked the party line. Here are a dozen of the highest-serving Republican officials to support gay marriage — and the only one who matters.Former Vice President Dick CheneyFormer Vice President Dick Cheney, whose daughter, Mary, is gay, said in 2009 that he supports gay marriage. "Freedom …